Finding the Fourth Proportional to 56,047.50, 77,347.17 and 30,898.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,047.50 : 77,347.17 = 30,898.62 : x
2. Step 2: Convert to fraction form
   56,047.50/77,347.17 = 30,898.62/x
3. Step 3: Cross multiply
   56,047.50x = 77,347.17 × 30,898.62
4. Step 4: Simplify right side
   56,047.50x = 2,389,920,813.91
5. Step 5: Solve for x
   x = 2,389,920,813.91/56,047.50
6. Step 6: Final answer
   x = 42,640.99